Your Complete Breast Pump Flange Size Guide
Your Complete Breast Pump Flange Size Guide
Blog Article
A breast pump flange size, also known as a breast shield, sits on the nipple while you use a pump to breastfeed. It’s shaped like a funnel, forming a vacuum seal around the nipple. This helps create the suction necessary to extract milk from the breast during pumping. Flanges typically range from 15 to 36mm, and most generic pump kits will come with a 24mm flange. If you need help measuring, a lactation specialist can assist you in finding your correct flange size.
Breasts are not all the same size, and it’s important to make sure you’re using the flange size that’s best for you. If your flange isn’t the right size, it may rub your skin and make pumping painful. Using the wrong size may also lead to clogged milk ducts that block flow. A loose flange won’t provide enough suction and can lead to lower milk production.
Measure your nipple with a tape measure or ruler to accurately determine your flange size. One of your best options is using the metric side of a fabric measuring tape. Measure the base of your nipple, and do not include the areola. As your body changes after pregnancy, you may find that your flange size changes over time. That’s fine, as most pump kits come with different flange sizes or you can order more.
If you have the correct flange size, it should feel comfortable, and only your nipple should enter the pumping tube. Your nipple should not rub against the side of the tube, and you shouldn’t feel any pain when you’re done pumping.
If your flange doesn’t fit correctly, you might notice nipple rubbing, pain, or your areola entering the tube. You may also notice skin irritation, blood circulation issues, or full breasts even after pumping. A too-small flange means your nipple won’t be able to move freely in the tunnel and milk flow may be slow. A too-big flange means you won’t get a good air seal and you’ll feel discomfort.
If your flange is just right, your nipple will be centered and be able to move in the tunnel. You shouldn’t feel any pain, and your breasts should be drained to your complete satisfaction after pumping. Many lactation specialists recommend the “COMFY” test to make sure you have the correct sizing.